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    HSC Physics

    Really, in Physics, it is moreso application than ability which determines how well you will go. Last year, i had some extremely smart students who were not all that applied and some not so bright students who studied continuously. One of the bright students ended up getting a high Band 4 (79)...
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    How much prelim. content carries over to yr. 12?

    Whilst the preliminary physics and chemistry course are not directly assessed in the HSC examination, all prelim phys and chem content is "assumed knowledge" for the HSC course. Eg, using the wave equation in world communicates is also applied in HSC course topic 3 - ideas to implementation...
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    Particle Accelerators - ?

    Physicists’ primary means for developing the understanding of fundamental constituents of matter is by using particle accelerators, where beams of particles moving at relativistic speeds are fired at a target, or two high energy beams moving in opposite directions are brought close together...
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    Do you really believe your good at 4U?

    I would like those PKC papers :) I dont have CSSA 2009 sols tho.. I do however, have around 500 other trial papers? (most with solns)
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    Physics teacher [Hills/Parra] 4yrs exp.. $30/hr

    HSC Tutoring Year 12 Physics (Starting Term 4, 2010) in the Hills district, or surrounding suburbs or in the vicinity of Parramatta About me / Experience: My name is Chris, I am in my 4th year of teaching Physics in a Western Sydney High School in the Blacktown area. I am...
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    if hydrogen has only one electron how does it produce 4 spectral lines?

    The wavelength of the spectral line is related to the energy difference between the initial and final energy state. The single electron has more than one possible final/initial energy state combination. Kind of like walking up stairs, you can take one at a time (lower energy) or take 2 at a...
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    Practicing past HSC papers

    The past 6 or 7 years marks of between 78-84 have been scaled up to give a band 6. So I suppose aim for 85
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    The key verbs "assess" + "discuss"

    Discuss: - Brief outline of idea/technology etc... - Advantages (For) - Disadvantages (Against) - Brief Summary Assess: - Brief outline of idea/technology etc... - Advantages - Disadvantages - Judgement - Brief Summary Words like "Assess" and "Evaluate" means you need to give a...
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    The key verbs "assess" + "discuss"

    Discuss: - Brief outline of idea/technology etc... - Advantages (For) - Disadvantages (Against) - Brief Summary Assess: - Brief outline of idea/technology etc... - Advantages - Disadvantages - Judgement - Brief Summary Words like "Assess" and "Evaluate" means you need to give a "value...
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    heating effects of a current

    Yep, the model heating coil is in "Electrical Energy in the Home" Basically, increased current = increased chances of electrons colliding with the lattice = increased resistance = increased heat
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    Confused about Holes :S..

    In reality both electrons and holes are responsible for current in a semiconductor and it depends on what is termed their "mobility" As far as we're concerned in the HSC course, "holes" make it easier for electrons to move, as there are free spaces for the electrons to move into. Electrons can...
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    2010 HSC Physics Revising Marathon

    I would suggest also adding something about either none or all of the energy of the photon being transferred to the electron and any energy above the work function being transformed into the KE of the electron. (perhaps directly after where you put the equation E=hf) Apart from that, sounds good.
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    Related Rates -- Fitzpatrick 25(a) q25

    Hey, i just differentiated 15x^2 to 30x i.e., 15x^2/dx = 30x
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    Differential equations

    Isn't the general solution for second order differential equation: y = Ae^2x + Be^x but don't you require boundary conditions to solve specific equations? what is 2'?
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    Related Rates -- Fitzpatrick 25(a) q25

    bwahahaha. what a noob i am geez, i gotta refresh on this stuff
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    Related Rates -- Fitzpatrick 25(a) q25

    OMG, it has been 9 years since i have done Math like this, but i will try :) So, we know the following: 1. y = x^3 2. rate at which x-co ord increases (i.e., dx/dt) = 5 units/sec We want the rate at which the gradient increases, which is essentially (dy/dx)/dt So: from 1. dy/dx = 3x^2 we...
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    doped semiconductors question

    Instead of putting eggs in there, put ball bearings in there. Let one ball bearing roam around free between the pits. WEEEEEEEEEEEEEEEEEEEEEeeeeeeeeeeeeee Could keep you entertained for hours! :D
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    Is not intensity affected by photon energy?

    There are several different definitions of intensity, even within different branches of physics! Easiest definition to think about for this case is what stampede said. Intensity is all to do with the number of photons per unit area, essentially the 'concentration' of photons.
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    Quick question

    Really, either could be considered independent variable, depending on the experiment. Eg, if you are measuring how secondary voltage changes when you change input voltage then the indep in the input voltage However, if you are determining how the secondary voltage changes when you...
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    how to easily remember the order of EM waves in decreasing energy.

    The one i still remember is Rabbits Mate In Very Unusual eXpensive Gardens
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